Metric and Imperial Conversions
Australia uses the metric system, but feet, inches, pounds and Fahrenheit still turn up in recipes, product specs, height charts and overseas travel. The conversion factors behind these tools are exact definitions: 1 inch is exactly 2.54 cm and 1 pound is exactly 0.45359237 kg.
- Length converter — mm, cm, m, km, inches, feet, yards and miles, plus feet-and-inches for heights.
- Weight converter — grams, kilograms, ounces, pounds and stone, including pounds-and-ounces for baby weights.
- Temperature converter — Celsius, Fahrenheit and Kelvin, with an oven temperature chart.
- Area converter — square metres, hectares, acres, square feet and the Australian 'square' used for house sizes.
Quick Conversion Formulas
Celsius to Fahrenheit: °F = °C × 9/5 + 32, so 25 °C is 77 °F. Kilograms to pounds: multiply by about 2.2046. Centimetres to inches: divide by 2.54. Hectares to acres: multiply by about 2.471. For anything more precise, or to see every unit at once, use the converters above.
Data Storage: GB vs GiB
Storage makers use decimal units, where 1 GB is 1,000,000,000 bytes, while many operating systems report binary units, where 1 GiB is 1,073,741,824 bytes. That's why a 1 TB drive shows about 931 'GB' on a computer. The data storage converter shows both systems side by side and estimates download times.
Sizes and Settings
Some conversions aren't simple multiplication. Bra sizes use different band numbers and cup letters in Australia, the UK, the US and Europe, so the bra size converter uses a lookup chart and shows sister sizes. The mouse sensitivity converter keeps the same aim feel between games by matching the distance your mouse travels for a full 360° turn.